F5 Networks BIG-IP : vCMP vulnerability (K01413496)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K01413496.
#
# The text description of this plugin is (C) F5 Networks.
#

include('compat.inc');

if (description)
{
  script_id(126394);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/02");

  script_cve_id("CVE-2019-6632");

  script_name(english:"F5 Networks BIG-IP : vCMP vulnerability (K01413496)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"Under certain circumstances, attackers can decrypt configuration items
that are encrypted because the vCMP configuration unit key is
generated with insufficient randomness. The attack prerequisite is
direct access to encrypted configuration and/or UCS files.
(CVE-2019-6632)

Impact

BIG-IP

This vulnerability may allow an attacker to decrypt configuration
and/or user configuration set (UCS) files that are encrypted.

BIG-IQ, F5 iWorkflow, Enterprise Manager, ARX, LineRate, and Traffix
SDC

There is no impact; these F5 products are not affected by this
vulnerability.");
  script_set_attribute(attribute:"see_also", value:"https://my.f5.com/manage/s/article/K01413496");
  script_set_attribute(attribute:"solution", value:
"Upgrade to one of the non-vulnerable versions listed in the F5 Solution K01413496.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-6632");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_access_policy_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_advanced_firewall_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_acceleration_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_security_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_visibility_and_reporting");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_domain_name_system");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_global_traffic_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_link_controller");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_local_traffic_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_policy_enforcement_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_webaccelerator");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"F5 Networks Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("f5_bigip_detect.nbin");
  script_require_keys("Host/local_checks_enabled", "Host/BIG-IP/hotfix", "Host/BIG-IP/modules", "Host/BIG-IP/version");

  exit(0);
}


include('f5_func.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var version = get_kb_item('Host/BIG-IP/version');
if ( ! version ) audit(AUDIT_OS_NOT, 'F5 Networks BIG-IP');
if ( isnull(get_kb_item('Host/BIG-IP/hotfix')) ) audit(AUDIT_KB_MISSING, 'Host/BIG-IP/hotfix');
if ( ! get_kb_item('Host/BIG-IP/modules') ) audit(AUDIT_KB_MISSING, 'Host/BIG-IP/modules');

var sol = 'K01413496';
var vmatrix = {
  'AFM': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  },
  'AM': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  },
  'APM': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  },
  'ASM': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  },
  'AVR': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  },
  'DNS': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  },
  'GTM': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  },
  'LC': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  },
  'LTM': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  },
  'PEM': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  },
  'WAM': {
    'affected': [
      '14.1.0','14.0.0','13.0.0-13.1.1','12.1.0-12.1.4'
    ],
    'unaffected': [
      '15.0.0','14.1.0.6','14.0.0.5','13.1.1.5','12.1.4.1'
    ],
  }
};

if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
{
  var extra = NULL;
  if (report_verbosity > 0) extra = bigip_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      extra      : extra
  );
}
else
{
  var tested = bigip_get_tested_modules();
  var audit_extra = 'For BIG-IP module(s) ' + tested + ',';
  if (tested) audit(AUDIT_INST_VER_NOT_VULN, audit_extra, version);
  else audit(AUDIT_HOST_NOT, 'running any of the affected modules');
}